Electrical Subsea & Drilling As

Erik Norbom

Bolie C Williams

Thor Arne Haverstad

John L Alsup

J Gilbert Nance

A packer actuation system for a blowout preventer includes a packer arrangement with an axial passage therethrough, an actuation system which is releasably mechanically connected to the packer arrangement, a contractor arrangement, and a retractor arrangement. The actuation system moves the packer arrangement from an expanded position to a contracted position so as to decrease a dimension of the axial passage, and to move the packer arrangement from the contracted position to the expanded position so as to increase the dimension of the axial passage. The contractor arrangement moves the packer arrangement from the expanded position to the contracted position. The retractor arrangement moves the packer arrangement from the contracted position to the expanded position.

Annular blowout preventer

A wellbore control device comprising a housing () defining a throughbore () for receiving a tubular, a first gate () having a first hole () and a second gate () having a second hole (), piston rods () operably connected to the first and second gates (), the first and second gates () being supported by the housing () and movable transverse to the throughbore () between an open position and a closed position, wherein the open position the first and second holes () are aligned with the throughbore (), and wherein the gates () in the closed position split an upper portion (') of the throughbore () completely from a lower portion (&#x2033;) of the throughbore ().

Wellbore control device

A wellbore control device includes a housing defining a throughbore which can receive a tubular, a first gate with a first hole, and a second gate with a second hole. The first gate and the second gate are supported by the housing and and can perform a movement transverse to the throughbore between an open position and a closed position. The movement of the first gate and the second gate from the open position to the closed position splits the throughbore into an upper portion and a lower portion, the upper position and the lower positing being completely separate from each other. The first hole and the second hole are aligned substantially co-axially with the throughbore in the open position. A part of at least one of the first hole and the second hole remains aligned with the throughbore in the closed position.

A ram for a blowout preventer, the ram having a top side and a bottom side, a front and a back; a first front seal face and a second front seal face provided on the front of the ram; a fluid communication channel extending through the ram from the front to the back thereof, the first front seal face being provided above and the second seal face below the fluid communication channel.

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Hoevik, Norway

Erik Norbom